CN204808381U - Asymmetric type RFID of qxcomm technology label - Google Patents
Asymmetric type RFID of qxcomm technology label Download PDFInfo
- Publication number
- CN204808381U CN204808381U CN201520196742.6U CN201520196742U CN204808381U CN 204808381 U CN204808381 U CN 204808381U CN 201520196742 U CN201520196742 U CN 201520196742U CN 204808381 U CN204808381 U CN 204808381U
- Authority
- CN
- China
- Prior art keywords
- antenna
- rfid label
- label tag
- inductive loop
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001939 inductive effect Effects 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model provides an asymmetric type RFID of qxcomm technology label, the antenna of RFID label adopts asymmetric structure and encircles including a plurality of inductance, the chip on -position feed district of RFID label is in the inductance ring alternating share of RFID label, every chip in chip on -position feed district insert arm both sides and all have one the inductance ring, one of them inductance ring is in the middle part of antenna. The utility model discloses a to antenna structure's improvement, the hard label of RFID of center circle enables to be used in and among, satisfied the comparatively balanced requirement of all directions performance, satisfied the characteristics of qxcomm technology's type label.
Description
Technical field
The utility model relates to field of radio frequency identification, particularly relates to the RFID hard tag of uhf band.
Background technology
Rapidly, application is more and more wider, and the directivity requirement of product is also more and more higher in RFID technique development.In recent years, the electronic tag of multiple omni-directional is proposed, mainly with the antenna of symmetrical dipole formula.The chip of this kind of antenna is generally all placed on centre of figure, to meet the insensitive RFID in direction application, but because chip is positioned at the center of label, so cause the RFID hard tag of similar center circle and inapplicable.The RFID hard tag center of usual center circle needs to empty placement lock core, so in actual application, cannot use conventional omni-directional RFID label tag.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of asymmetrical omni-directional RFID label tag, can be applied in center circle RFID hard tag, and the reading distance in all directions is accomplished comparatively average.For this reason, the utility model is by the following technical solutions:
A kind of asymmetrical omni-directional RFID label tag, it is characterized in that the antenna of described RFID label tag adopts asymmetrical structure and comprises multiple inductive loop, the feed area, chip on-position of described RFID label tag is in the inductive loop alternating share of described RFID label tag, all there is a described inductive loop each chip access arm both sides of described feed area, chip on-position, and one of them inductive loop is in the middle part of antenna.
On the basis adopting technique scheme, the utility model also can adopt following further technical scheme:
Described antenna has four inductive loops.
The antenna arm of described antenna is to setting, and often pair of antenna arm is oppositely arranged relative to the described inductive loop be in the middle part of antenna, the aerial radiation similar length that often pair of antenna arm is formed.
Described antenna has two pairs of antenna arms, and often pair of antenna arm is oppositely arranged relative to the described inductive loop be in the middle part of antenna, the aerial radiation similar length that often pair of antenna arm is formed.
The described size being in the inductive loop in the middle part of antenna can be passed for hard label lock core.
Owing to adopting the technical solution of the utility model, the utility model, by improvement to antenna structure, among the RFID hard tag that can be used in center circle, meets the requirement that all directions performance is comparatively balanced, meets the feature of omni-directional label.
Accompanying drawing explanation
Fig. 1 is the RFID hard tag explosive view applying center circle of the present utility model.
Fig. 1 a is the schematic diagram after concealing outer casing upper cover embodiment illustrated in fig. 1.
Fig. 2 is floor plan embodiment illustrated in fig. 1.
Fig. 3 is inductance ring structure schematic diagram embodiment illustrated in fig. 1.
Fig. 4 is antenna arm structural representation embodiment illustrated in fig. 1.
Embodiment
With reference to accompanying drawing.Asymmetrical omni-directional RFID label tag 200 provided by the utility model, its antenna adopts asymmetrical structure and comprises multiple inductive loop, the feed area, chip on-position 1 of described RFID label tag is in the inductive loop alternating share of described RFID label tag, all there is a described inductive loop each chip access arm both sides of described feed area, chip on-position, and one of them inductive loop is in the middle part of antenna.
In the present embodiment, described antenna has four inductive loops 21,22,23,24, and inductive loop 21 is in the middle part of antenna, passes for hard label lock core 100.Described antenna has 4 chip access arms 31,32,33,34.
Described antenna has two pairs of antenna arms, be respectively antenna arm 41 and 42 paired, antenna arm 43 and 44 is paired, often pair of antenna arm is oppositely arranged relative to the described inductive loop 21 be in the middle part of antenna, the antenna arm length sum of often pair of antenna arm is basically identical, makes the aerial radiation similar length that often pair of antenna arm is formed.
Claims (5)
1. an asymmetrical omni-directional RFID label tag, it is characterized in that the antenna of described RFID label tag adopts asymmetrical structure and comprises multiple inductive loop, the feed area, chip on-position of described RFID label tag is in the inductive loop alternating share of described RFID label tag, all there is a described inductive loop each chip access arm both sides of described feed area, chip on-position, and one of them inductive loop is in the middle part of antenna.
2. a kind of asymmetrical omni-directional RFID label tag as claimed in claim 1, is characterized in that described antenna has four inductive loops.
3. a kind of asymmetrical omni-directional RFID label tag as claimed in claim 1, it is characterized in that the antenna arm of described antenna is to setting, and often pair of antenna arm is oppositely arranged relative to the described inductive loop be in the middle part of antenna, the aerial radiation similar length that often pair of antenna arm is formed.
4. a kind of asymmetrical omni-directional RFID label tag as claimed in claim 2, it is characterized in that described antenna has two pairs of antenna arms, and often pair of antenna arm is oppositely arranged relative to the described inductive loop be in the middle part of antenna, the aerial radiation similar length that often pair of antenna arm is formed.
5. the asymmetrical omni-directional RFID label tag of the one as described in claim 1,2,3 or 4, is characterized in that the described size being in the inductive loop in the middle part of antenna can be passed for hard label lock core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196742.6U CN204808381U (en) | 2015-04-02 | 2015-04-02 | Asymmetric type RFID of qxcomm technology label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196742.6U CN204808381U (en) | 2015-04-02 | 2015-04-02 | Asymmetric type RFID of qxcomm technology label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204808381U true CN204808381U (en) | 2015-11-25 |
Family
ID=54593166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196742.6U Expired - Fee Related CN204808381U (en) | 2015-04-02 | 2015-04-02 | Asymmetric type RFID of qxcomm technology label |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204808381U (en) |
-
2015
- 2015-04-02 CN CN201520196742.6U patent/CN204808381U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province Gongshu District 310015 Moganshan Road No. 1418-48 Patentee after: HANGZHOU CENTURY TECHNOLOGY Co.,Ltd. Patentee after: HANGZHOU CENTURY Co.,Ltd. Address before: Hangzhou City, Zhejiang province Gongshu District 310015 Moganshan Road No. 1418-48 Patentee before: HANGZHOU CENTURY TECHNOLOGY Co.,Ltd. Patentee before: HANGZHOU CENTURY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |